Two collocated QuantAQ MODULAIR-PM air quality monitoring sensors were installed at a monitoring site in East Hartford, Connecticut to evaluate its performance tracking particulate and meteorology data over a year long time frame. Hourly data for PM2.5, PM10, temperature and relative humidity were compared to reference monitors located at the same site. The full downloadable dataset used is located here Download CSV.

Sensor Details

QuantAQ MODULAIR-PM Specifications

Possible Configuration Evaluated Configuration Cost Data Access Power Supply Considerations Reference Monitors Compared
Particulates: PM1, PM2.5, PM10
Meteorology: Temp, RH
Particulates: PM2.5, PM10
Meteorology: Temp, RH
Sensor: $1,500.00
Solar Power System: $495.00
Cloud Service: $500.00 per device & year
Web Interface, API, SD Card Standard 5V, 2A USB-C connection (connect to solar or battery) Time Resolution: 5 minute to 24 hour intervals
Dimensions: 6.59” x 6.59” x 5.11”
Weight: 1.8 kg
PM2.5 & PM10: Teledyne API T640X
Temp & RH: Climatronix & Vaisala via AutoMet 580

Setup

Timeseries Comparison

QuantAQ MODULAIR-PM hourly data for PM2.5, PM10, temperature and relative humidity were compared by quarter to reference values (Q1: January-March, Q2: April-June, Q3: July-September, Q4: October-December).

PM2.5

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

PM10

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

Temperature

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

Relative Humidity

Quarter 3 (2023)

Quarter 4 (2023)

Quarter 1 (2024)

Quarter 2 (2024)

Correlation Comparison

QuantAQ MOD-PM-00996 and Reference

PM2.5

PM10

Temperature

Relative Humidity

QuantAQ MOD-PM-00997 and Reference

PM2.5

PM10

Temperature

Relative Humidity

QuantAQ MOD-PM-00996 and MOD-PM-00997

PM2.5

PM10

Temperature

Relative Humidity

Results Summary

*Outliers were defined from the QuantAQ dataset using the IQR Method (all data points more than 1.5 below the the lower bound quartile or above the upper bound quartile).

Contact Information

Questions on Connecticut community based monitoring:
Questions on creating this report: